BacteroidesFragilisis an obligateanaerobe, Gram-negative bacteria that is a part of the normal biome of the human colon. Functionally, there are two distinct groups ofBacteroides fragilis. Strains that secrete a zinc-dependentmetalloproteasetoxin (Bft) which is encoded from theB. fragilispathogenicity...
Related to Bacteroides fragilis:Clostridium difficile,clostridium perfringens,E coli ThesaurusAntonymsRelated WordsSynonymsLegend: Switch tonew thesaurus Noun1. Bacteroides- type genus of Bacteroidaceae; genus of Gram-negative rodlike anaerobic bacteria producing no endospores and no pigment and living in ...
Genomic analyses of Bacteroides fragilis: subdivisions I and II represent distinct speciesantimicrobial resistanceBacteroidaceaetaxonomyIntroduction. Bacteroides fragilis is a Gram-negative anaerobe that is a member of the human gastrointestinal microbiota and is frequently found as an extra-intestinal ...
abdominal infections caused by the following Gram-negative and Gram-positive microorganisms: Enterobacter cloacae, Escherichia coli, Klebsiella oxytoca, Klebsiella pneumoniae, Proteus mirabilis, Pseudomonas aeruginosa, Bacteroides fragilis, Streptococcus anginosus, Streptococcus constellatus, and Streptococcus ...
Bacteroides fragilis is a Gram-negative anaerobe that is a member of the human gastrointestinal microbiota and is frequently found as an extra-intestinal opportunistic pathogen. B. fragilis comprises two distinct groups – divisions I and II – characterized by the presence/absence of genes [cepA ...
1.Two types of bacteria, Bacteroides fragilis and a strain of E. coli, can pierce a mucus shield that lines the colon and normally blocks invaders from entering, the researchers found. 2.In type 2, on the other hand, Bacteroides was relatively rare, while the genus Prevotella was unusually...
fragilis The anaerobic bacteria were phenotypically identified based on colony morphology, Gram staining, and differential tests such as catalase, indole, bile disc, and finally Vitek 2 system (Biomerieux, France). Two polymerase chain reactions (PCR) were also performed to amplify the 16 S rDNA...
normal flora of the intestinal tract and to a lesser degree, the respiratory and urogenital cavities of humans and animals; many species formerly classified asBacteroideshave been reclassified as belonging to the genusPrevotella. Many species can be pathogenic. The type species isBacteroides fragilis....
fragilis, B. thetaiotaomicron and B. uniformis do not have this ability. Only the polysaccharide utilization locus of B. thetaiotaomicron encodes enzymes that decompose β-2,6 linked fructans, and this species can grow on medium with β-2,6 linked fructans as the sole carbon source (Tannock, ...
[1]Bacteroides fragilisis an obligate anaerobic gram-negative bacillus. The human colon has the greatest population of bacteria in the body (over ten organisms per gram of wet weight), and the largest part of these organisms are anaerobes; of these, approximately 25% are species ofBacteroides....